Wrench



A. R. HEANEY.

WRENCH.

APPLICATION FILED APR.2, 1921'.

- Patented Sept. 20,1921.

W ial, 70

L INVENTOR.

A TTORNE Y.

UNITED STATES PATENT OFFICE.

AARON B. HEANEY, OF STILLWATER, OKLAHOMA.

WRENCH.

Application filed April 2, 1921.

' vision of a wrench having a movable jaw,

and wherein the movable jaw is forced toward the stationary jawcontinually during the use of the wrench.

A further object of the invention is to provide a wrench of thischaracter wherein the structure employed is extremely simple and whereinthe movable jaw is very solidly supported to prevent the breakage inthis type of wrench.

Other objects and advantages will become apparent throughout the courseof the following description.

In the accompanying drawings wherein for the purpose of illustration isshown a preferred embodiment of my invention, and wherein like referencecharacters designate like parts throughout:

Figure 1 is a side elevation of a wrench constructed in accordance withmy invention, showing in solid lines the wrenchengaged with a pipe, andshowing in dotted lines the wrench handle shifted to move the movablejaw away from the stationary jaw;

Fig. 2 is an enlarged side elevation thereof. one of the side platesbeing broken away;

Fig. 3 is an end elevation thereof, and

Fig. 4 is a top plan view thereof.

Referring now more particularly to the drawings, the numeral 10indicates a stationary jaw reduced as at ll, to provide an attachingextension 12 to which, as by means 'of rivets 13, are secured sideplates 14:.

Specification of Letters Patent.

Patented Sept. 20, 1921. Serial No. 457,943.

ably receive the inturned flanges of the side plates 14. The lower endof the base 17, whlch is reduced and slidable intermediate the plates14: has formed upon the lower face thereof a rack 19.

Mounted in the side plates 14 is a pivot pin 20 upon which is pivotallymounted one end of a handle member 21. This end of the handle member 21has an enlarged head 22 forming a mutilated gear meshing with the rack19 of the movable jaw. It will be seen that upon movement of the handlefrom the position shown in solid lines in Fig. 2 to the position shownin dotted lines, the movable jaw will be projected toward the stationaryjaw. Particular attention is directed to the fact that when the movablejaw 17 is in the full open position as shown in the dotted lines in Fig.2, the base 17 is still completely engaged by the side plates and themovable jaw is accordingly very solidly held.

Many changes being possible in the shape, size and arrangement of thevarious parts herein shown without in any manner departing from thespirit of my invention, I do not limit myself to the specific structurehereinabove set forth except as hereinafter claimed.

What I claim is:

A wrench comprising a fixed jaw embodying a reduced extension projectingrearwardly and downwardly therefrom, side plates secured to said reducedextension and each provided at its forward side with angular flangesdirected toward each other, a base member having grooves formed thereinslidably receiving said flanges, a jaw formed upon said base at the endthereof next adjacent the fixed jaw, a rack formed upon the rear edge ofsaid base and lying between said side plates, and a handle pivotallymounted between said side plates and embodying a mutilated gear meshingwith said rack to shift said base toward and away from said fixed jaw,said base when withdrawn from said fixed jaw being completely engaged bythe said flanges to be supported thereby.

In'testimony whereof I hereunto aflix my signature.

AARON R. HEANEY.

